Backpack



FIG. 1 is a perspective view of a backpack showing our new design, thelower cylindrical portion shown in an open position, and the drawstringbeing understood to be of indeterminate length;

FIG. 2 is a front elevational view thereof, the lower cylindricalportion being shown closed, and the drawstring being shown broken awayin FIGS. 2 through 6 for ease of illustration;

FIG. 3 is a rear elevational view of FIG. 2;

FIG. 4 is a top plan view of FIG. 2;

FIG. 5 is a bottom plan view of FIG. 2;

FIG. 6 is a right side elevational view of FIG. 2; and,

FIG. 7 is a left side elevational view of FIG. 2.

The ornamental design for a backpack, as shown and described.